[Staff edit].
That is silly. Whatever their believes now--no one can refute the fact that the Catholics were the first church, not the first Christians, by any means, and there were Christian churches before they banded together as a church, but for several 1000 years, they were they ONLY church. There were always groups that rejected their teachings, they were underground groups and had to be for only they were legally allowed to have the bible. And it is well known about the millions they persecuted and killed in the name of their church. Some of the popes, even in their own history, are known to have done evil. But to say they are not Christian is a far stretch. Yes, it was even their own clergy who first publicly stated that the pope was antichrist. It did not start with Protestants.
That is not to say that, as Christians, every Christian is following the bible. There are evil, wrong doing Christians in every single denomination. And every denomination has a history of being persecuted by other Christians. Fact is, we are all human, all sinners, all have come short of the glory of God, there is none that is good--no, not one! One denomination can not separate itself from another because they have been persecuted--Catholics have had their share of persecution. We love to hate. That is the bottom line.
One does not decide what church to belong to, or leave, based on the actions of the individual members. We are supposed to choose one that best teaches the word of God. How the members act is between them and God. We are not to follow, preachers, priests or any other individual. We are to follow and emulate Jesus who teaches and shows us--God, the Father.